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Efficacy and Safety of GSP 301 Nasal Spray in Children (Aged 6 to Under 12 Years) With Seasonal Allergic Rhinitis (SAR)

A Double-Blind, Randomized, Parallel-Group Study to Evaluate the Efficacy, Safety and Tolerability of Fixed Dose Combination GSP 301 Nasal Spray Compared With Placebo Nasal Spray in Pediatric Subjects (Aged 6 to Under 12 Years) With Seasonal Allergic Rhinitis (SAR)

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03463031
Acronym
GSP 301-305
Enrollment
446
Registered
2018-03-13
Start date
2018-03-16
Completion date
2018-11-14
Last updated
2019-10-08

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Seasonal Allergic Rhinitis (SAR)

Keywords

GSP 301 nasal spray for the treatment of Seasonal Allergic Rhinitis

Brief summary

Study to evaluate the efficacy, safety and tolerability of GSP 301 nasal spray (NS) compared with placebo NS in pediatric subjects (aged 6 to under 12 years) with Seasonal Allergic Rhinitis (SAR).

Interventions

1 spray in each nostril twice daily for 14 days

1 spray in each nostril twice daily for 14 days

Sponsors

Glenmark Specialty S.A.
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
6 Years to 11 Years
Healthy volunteers
No

Inclusion criteria

1. Male and female subjects aged ≥6 to \<12 years 2. Clinical history of SAR (at least 2 years) with exacerbations during the study season for the relevant seasonal allergen (e.g., tree/grass pollen) 3. Demonstrated sensitivity to at least 1 seasonal allergen through positive skin prick test within 12 months prior to screening 4. A 12-hour rTNSS value ≥6 out of a possible 12 for the morning assessment at screening 5. Signed informed consent/assent form (subject and parent/caregiver/legal guardian)

Exclusion criteria

1. Females of childbearing potential or pregnant 2. Plans to travel outside the known pollen area for the investigational site for 24 hours or longer during the last 7 days of the run-in period. 3. History of anaphylaxis and/or other severe local reaction(s) to skin testing 4. History and evidence of acute or significant chronic sinusitis or chronic purulent post nasal drip 5. Subjects with an active pulmonary disorder or infection. 6. Subjects with posterior subcapsular cataracts or glaucoma

Design outcomes

Primary

MeasureTime frameDescription
Change From Baseline in Average AM and PM Subject-reported 12-hour Reflective Total Nasal Symptom Score ( rTNSS) Over the 14-day Treatment PeriodBaseline and day 14The Reflective Total Nasal Symptom Score (rTNSS) was assessed by 12-hour reflective scoring of the severity of four nasal symptoms (rhinorrhea, sneezing, nasal congestion, nasal itching). Scores ranged from 0 (no signs/symptoms evident) to 3 (severe signs/symptoms that is hard to tolerate, causes interference with activities of daily living and/or sleeping). Each of these four nasal symptoms (rhinorrhea, sneezing, nasal congestion, nasal itching) of the rTNSS is rated on a scale from 0 to 3 (0 = none, 1 = mild, 2 = moderate, 3 = severe). The four nasal symptoms of the rTNSS is summed. The total score of the rTNSS ranged from 0 to 12.

Secondary

MeasureTime frameDescription
Change From Baseline in Average AM and PM Subject-reported 12-hour Instantaneous Total Nasal Symptom Score (iTNSS) Over the 14-day Treatment Period.Baseline and day 14The instantaneous Total Nasal Symptom Score (iTNSS) was assessed by instantaneous (ie, an evaluation of the symptom severity just before taking study medication \[within 10 minutes\]) of four nasal symptoms (rhinorrhea, sneezing, nasal congestion, nasal itching). Scores ranged from 0 (no signs/symptoms evident) to 3 (severe signs/symptoms that is hard to tolerate, causes interference with activities of daily living and/or sleeping). Each of these four nasal symptoms (rhinorrhea, sneezing, nasal congestion, nasal itching) of the iTNSS is rated on a scale from 0 to 3 (0 = none, 1 = mild, 2 = moderate, 3 = severe). The four nasal symptoms of the iTNSS is summed. The total score of the iTNSS ranged from 0 to 12.
Change From Baseline in the Overall Pediatric Rhinoconjunctivitis Quality of Life Questionnaire (PRQLQ) Score on Day 15 (Visit 4)Baseline and day 15The PRQLQ is a validated, disease-specific, quality-of-life (QOL) questionnaire developed to measure the physical, emotional, and social impairments that are experienced by children (aged ≥6 to \<12 years) with rhinoconjunctivitis. The PRQLQ has 23 questions in 5 domains (nose symptoms, eye symptoms, practical problems, activity limitation and other symptoms). Subjects recall how they have been during the previous week and respond to each question on a 7-point scale with scores ranging from 6 (extremely bothered), 5 (very bothered), 4 (quite bothered), 3 (somewhat bothered), 2 (bothered a bit), 1 (hardly bothered at all), 0 (not bothered). The Overall PRQLQ score is the mean of all 23 subject-reported responses. The Overall PRQLQ score range from 0 to 6 where 0 represents no impairment and 6 represents maximum impairment.
Change From Baseline in Average AM and PM Subject-reported 12-hour Reflective Total Ocular Symptom Score (rTOSS) Over the 14-day Treatment Period.Baseline and day 14The Total Ocular Symptom Score (TOSS) will be calculated using the 3 eye-related non-nasal symptoms: itching/burning eyes, tearing/watering eyes, and redness of eyes. The subject will assess and report his/her non-nasal symptoms twice (AM and PM assessments). Scores ranged from 0 (No sign/symptom evident), 1 (Sign/symptom clearly present but minimal awareness; easily tolerated), 2 (Definite awareness of sign/symptom that is bothersome but tolerable) and 3 (Sign/symptom is hard to tolerate; causes interference with activities of daily living and/or sleeping). The Total Ocular Symptom Score (TOSS) ranged from 0 to 9.

Countries

United States

Participant flow

Participants by arm

ArmCount
GSP 301 NS
Intranasal administration, 1 spray in each nostril BID (AM and PM, approximately 12 hours apart) for 14 days
225
Placebo NS
Intranasal administration, 1 spray in each nostril BID (AM and PM, approximately 12 hours apart) for 14 days
221
Total446

Withdrawals & dropouts

PeriodReasonFG000FG001
Overall StudyAdverse Event41
Overall StudyInvestigator/Sponsor Decision01
Overall StudyLost to Follow-up11
Overall StudyUse of prohibited medication by subject10
Overall StudyWithdrawal by Subject42

Baseline characteristics

CharacteristicGSP 301 NSPlacebo NSTotal
Age, Continuous8.7 years
STANDARD_DEVIATION 1.6
8.6 years
STANDARD_DEVIATION 1.7
8.7 years
STANDARD_DEVIATION 1.7
Age, Customized
6 - < 9
100 Participants99 Participants199 Participants
Age, Customized
9 - < 12
125 Participants122 Participants247 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
67 Participants85 Participants152 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
158 Participants135 Participants293 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants1 Participants1 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
8 Participants5 Participants13 Participants
Race (NIH/OMB)
Black or African American
46 Participants44 Participants90 Participants
Race (NIH/OMB)
More than one race
3 Participants2 Participants5 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants1 Participants1 Participants
Race (NIH/OMB)
White
168 Participants169 Participants337 Participants
Sex: Female, Male
Female
99 Participants109 Participants208 Participants
Sex: Female, Male
Male
126 Participants112 Participants238 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
0 / 2250 / 221
other
Total, other adverse events
0 / 2250 / 221
serious
Total, serious adverse events
0 / 2251 / 221

Outcome results

Primary

Change From Baseline in Average AM and PM Subject-reported 12-hour Reflective Total Nasal Symptom Score ( rTNSS) Over the 14-day Treatment Period

The Reflective Total Nasal Symptom Score (rTNSS) was assessed by 12-hour reflective scoring of the severity of four nasal symptoms (rhinorrhea, sneezing, nasal congestion, nasal itching). Scores ranged from 0 (no signs/symptoms evident) to 3 (severe signs/symptoms that is hard to tolerate, causes interference with activities of daily living and/or sleeping). Each of these four nasal symptoms (rhinorrhea, sneezing, nasal congestion, nasal itching) of the rTNSS is rated on a scale from 0 to 3 (0 = none, 1 = mild, 2 = moderate, 3 = severe). The four nasal symptoms of the rTNSS is summed. The total score of the rTNSS ranged from 0 to 12.

Time frame: Baseline and day 14

Population: The Full Analysis Set (FAS) consisted of all subjects who are randomized and received at least 1 dose of IP and had at least 1 post-baseline primary efficacy assessment.

ArmMeasureGroupValue (MEAN)Dispersion
GSP 301 NSChange From Baseline in Average AM and PM Subject-reported 12-hour Reflective Total Nasal Symptom Score ( rTNSS) Over the 14-day Treatment PeriodBaseline8.83 units on a scaleStandard Deviation 1.41
GSP 301 NSChange From Baseline in Average AM and PM Subject-reported 12-hour Reflective Total Nasal Symptom Score ( rTNSS) Over the 14-day Treatment PeriodMean Change from baseline to end of treatment-2.2 units on a scaleStandard Deviation 0.17
Placebo NSChange From Baseline in Average AM and PM Subject-reported 12-hour Reflective Total Nasal Symptom Score ( rTNSS) Over the 14-day Treatment PeriodBaseline8.84 units on a scaleStandard Deviation 1.66
Placebo NSChange From Baseline in Average AM and PM Subject-reported 12-hour Reflective Total Nasal Symptom Score ( rTNSS) Over the 14-day Treatment PeriodMean Change from baseline to end of treatment-1.6 units on a scaleStandard Deviation 0.18
p-value: 0.00195% CI: [-0.9, -0.2]Mixed Models Analysis
Secondary

Change From Baseline in Average AM and PM Subject-reported 12-hour Instantaneous Total Nasal Symptom Score (iTNSS) Over the 14-day Treatment Period.

The instantaneous Total Nasal Symptom Score (iTNSS) was assessed by instantaneous (ie, an evaluation of the symptom severity just before taking study medication \[within 10 minutes\]) of four nasal symptoms (rhinorrhea, sneezing, nasal congestion, nasal itching). Scores ranged from 0 (no signs/symptoms evident) to 3 (severe signs/symptoms that is hard to tolerate, causes interference with activities of daily living and/or sleeping). Each of these four nasal symptoms (rhinorrhea, sneezing, nasal congestion, nasal itching) of the iTNSS is rated on a scale from 0 to 3 (0 = none, 1 = mild, 2 = moderate, 3 = severe). The four nasal symptoms of the iTNSS is summed. The total score of the iTNSS ranged from 0 to 12.

Time frame: Baseline and day 14

Population: The Full Analysis Set (FAS) consisted of all subjects who are randomized and received at least 1 dose of IP and had at least 1 post-baseline primary efficacy assessment.

ArmMeasureGroupValue (MEAN)Dispersion
GSP 301 NSChange From Baseline in Average AM and PM Subject-reported 12-hour Instantaneous Total Nasal Symptom Score (iTNSS) Over the 14-day Treatment Period.Baseline7.89 units on a scaleStandard Deviation 1.93
GSP 301 NSChange From Baseline in Average AM and PM Subject-reported 12-hour Instantaneous Total Nasal Symptom Score (iTNSS) Over the 14-day Treatment Period.Mean Change from baseline to end of treatment-1.8 units on a scaleStandard Deviation 0.17
Placebo NSChange From Baseline in Average AM and PM Subject-reported 12-hour Instantaneous Total Nasal Symptom Score (iTNSS) Over the 14-day Treatment Period.Baseline7.82 units on a scaleStandard Deviation 2.04
Placebo NSChange From Baseline in Average AM and PM Subject-reported 12-hour Instantaneous Total Nasal Symptom Score (iTNSS) Over the 14-day Treatment Period.Mean Change from baseline to end of treatment-1.1 units on a scaleStandard Deviation 0.17
p-value: <0.00195% CI: [-1, -0.3]Mixed Models Analysis
Secondary

Change From Baseline in Average AM and PM Subject-reported 12-hour Reflective Total Ocular Symptom Score (rTOSS) Over the 14-day Treatment Period.

The Total Ocular Symptom Score (TOSS) will be calculated using the 3 eye-related non-nasal symptoms: itching/burning eyes, tearing/watering eyes, and redness of eyes. The subject will assess and report his/her non-nasal symptoms twice (AM and PM assessments). Scores ranged from 0 (No sign/symptom evident), 1 (Sign/symptom clearly present but minimal awareness; easily tolerated), 2 (Definite awareness of sign/symptom that is bothersome but tolerable) and 3 (Sign/symptom is hard to tolerate; causes interference with activities of daily living and/or sleeping). The Total Ocular Symptom Score (TOSS) ranged from 0 to 9.

Time frame: Baseline and day 14

Population: The Full Analysis Set (FAS) consisted of all subjects who are randomized and received at least 1 dose of IP and had at least 1 post-baseline primary efficacy assessment.

ArmMeasureGroupValue (MEAN)Dispersion
GSP 301 NSChange From Baseline in Average AM and PM Subject-reported 12-hour Reflective Total Ocular Symptom Score (rTOSS) Over the 14-day Treatment Period.Baseline3.84 units on a scaleStandard Deviation 2.45
GSP 301 NSChange From Baseline in Average AM and PM Subject-reported 12-hour Reflective Total Ocular Symptom Score (rTOSS) Over the 14-day Treatment Period.Mean Change from baseline to end of treatment-0.8 units on a scaleStandard Deviation 0.14
Placebo NSChange From Baseline in Average AM and PM Subject-reported 12-hour Reflective Total Ocular Symptom Score (rTOSS) Over the 14-day Treatment Period.Baseline3.59 units on a scaleStandard Deviation 2.52
Placebo NSChange From Baseline in Average AM and PM Subject-reported 12-hour Reflective Total Ocular Symptom Score (rTOSS) Over the 14-day Treatment Period.Mean Change from baseline to end of treatment-0.6 units on a scaleStandard Deviation 0.13
p-value: 0.23395% CI: [-0.6, 0.1]Mixed Models Analysis
Secondary

Change From Baseline in the Overall Pediatric Rhinoconjunctivitis Quality of Life Questionnaire (PRQLQ) Score on Day 15 (Visit 4)

The PRQLQ is a validated, disease-specific, quality-of-life (QOL) questionnaire developed to measure the physical, emotional, and social impairments that are experienced by children (aged ≥6 to \<12 years) with rhinoconjunctivitis. The PRQLQ has 23 questions in 5 domains (nose symptoms, eye symptoms, practical problems, activity limitation and other symptoms). Subjects recall how they have been during the previous week and respond to each question on a 7-point scale with scores ranging from 6 (extremely bothered), 5 (very bothered), 4 (quite bothered), 3 (somewhat bothered), 2 (bothered a bit), 1 (hardly bothered at all), 0 (not bothered). The Overall PRQLQ score is the mean of all 23 subject-reported responses. The Overall PRQLQ score range from 0 to 6 where 0 represents no impairment and 6 represents maximum impairment.

Time frame: Baseline and day 15

Population: The Full Analysis Set (FAS) consisted of all subjects who are randomized and received at least 1 dose of IP and had at least 1 post-baseline primary efficacy assessment.

ArmMeasureGroupValue (MEAN)Dispersion
GSP 301 NSChange From Baseline in the Overall Pediatric Rhinoconjunctivitis Quality of Life Questionnaire (PRQLQ) Score on Day 15 (Visit 4)Baseline2.51 units on a scaleStandard Deviation 1.078
GSP 301 NSChange From Baseline in the Overall Pediatric Rhinoconjunctivitis Quality of Life Questionnaire (PRQLQ) Score on Day 15 (Visit 4)Mean Change from baseline to end of treatment-0.8 units on a scaleStandard Deviation 0.08
Placebo NSChange From Baseline in the Overall Pediatric Rhinoconjunctivitis Quality of Life Questionnaire (PRQLQ) Score on Day 15 (Visit 4)Baseline2.42 units on a scaleStandard Deviation 1.001
Placebo NSChange From Baseline in the Overall Pediatric Rhinoconjunctivitis Quality of Life Questionnaire (PRQLQ) Score on Day 15 (Visit 4)Mean Change from baseline to end of treatment-0.5 units on a scaleStandard Deviation 0.08
p-value: <0.00195% CI: [-0.5, -0.1]ANCOVA

Source: ClinicalTrials.gov · Data processed: Feb 11, 2026